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Learning efficient visual representations across heterogeneous unlabeled datasets remains a central challenge in federated learning. Effective federated representations require features that are jointly informative across clients while…

计算机视觉与模式识别 · 计算机科学 2025-10-27 Guiqiu Liao , Matjaz Jogan , Eric Eaton , Daniel A. Hashimoto

Among the widely used parameter-efficient fine-tuning (PEFT) methods, LoRA and its variants have gained considerable popularity because of avoiding additional inference costs. However, there still often exists an accuracy gap between these…

Fine-tuning a pretrained language model on a curated dataset can produce spurious correlations between the fine-tuning task and unintended latent factors -- such as misaligned personas or political slant -- that the curation procedure has…

机器学习 · 统计学 2026-05-28 Ciarán M. Gilligan-Lee , Joseph Egan , Yuchen Zhu , Michael O'Riordan

Low-Rank Adaptation (LoRA) has proven effective in reducing computational costs while maintaining performance comparable to fully fine-tuned foundation models across various tasks. However, its fixed low-rank structure restricts its…

计算机视觉与模式识别 · 计算机科学 2025-07-02 Chuyan Zhang , Kefan Wang , Yun Gu

Large language models (LLMs) exhibit remarkable capabilities in natural language processing but face catastrophic forgetting when learning new tasks, where adaptation to a new domain leads to a substantial decline in performance on previous…

计算与语言 · 计算机科学 2025-03-24 Yuheng Lu , Bingshuo Qian , Caixia Yuan , Huixing Jiang , Xiaojie Wang

Alignment with human preference is a desired property of large language models (LLMs). Currently, the main alignment approach is based on reinforcement learning from human feedback (RLHF). Despite the effectiveness of RLHF, it is intricate…

计算与语言 · 计算机科学 2024-04-16 Geyang Guo , Ranchi Zhao , Tianyi Tang , Wayne Xin Zhao , Ji-Rong Wen

Large Language Models (LLMs) have demonstrated remarkable effectiveness in adapting to downstream tasks through fine-tuning. Federated Learning (FL) extends this capability by enabling collaborative fine-tuning across distributed clients…

分布式、并行与集群计算 · 计算机科学 2026-02-20 Zikai Zhang , Rui Hu , Jiahao Xu

Parameter-efficient finetuning (PEFT) aims to mitigate the substantial computational and memory overhead involved in adapting large-scale pretrained models to diverse downstream tasks. Among numerous PEFT strategies, Low-Rank Adaptation…

人工智能 · 计算机科学 2025-10-10 Xiaoshuang Ji , Zhendong Zhao , Xiaoyan Gu , Xiaojun Chen , Xin Zhao , Zeyao Liu

Continual Visual Instruction Tuning (CVIT) enables Multimodal Large Language Models (MLLMs) to incrementally learn new tasks over time. However, this process is challenged by catastrophic forgetting, where performance on previously learned…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Chang Che , Ziqi Wang , Pengwan Yang , Qi Wang , Hui Ma , Zenglin Shi

Pre-trained foundation models (FMs), with extensive number of neurons, are key to advancing next-generation intelligence services, where personalizing these models requires massive amount of task-specific data and computational resources.…

系统与控制 · 电气工程与系统科学 2024-07-04 Zixin Wang , Yong Zhou , Yuanming Shi , Khaled. B. Letaief

Parameter-efficient fine-tuning methods, such as Low-Rank Adaptation (LoRA), are known to enhance training efficiency in Large Language Models (LLMs). Due to the limited parameters of LoRA, recent studies seek to combine LoRA with…

计算与语言 · 计算机科学 2024-10-15 Peijun Qing , Chongyang Gao , Yefan Zhou , Xingjian Diao , Yaoqing Yang , Soroush Vosoughi

Fine-tuning large pre-trained models for downstream tasks has become a fundamental approach in natural language processing. Fully fine-tuning all model parameters is computationally expensive and memory-intensive, especially in…

计算与语言 · 计算机科学 2025-09-24 Yu Chen , Yifei Han , Long Zhang , Yue Du , Bin Li

Low-Rank Adaptation (LoRA) methods have gained popularity in efficient parameter fine-tuning of models containing hundreds of billions of parameters. In this work, instead, we demonstrate the application of LoRA methods to train…

机器学习 · 计算机科学 2024-06-27 Lucas Grativol Ribeiro , Mathieu Leonardon , Guillaume Muller , Virginie Fresse , Matthieu Arzel

In-context learning (ICL) converts static encoders into task-conditioned reasoners, enabling adaptation to new data from just a few examples without updating pretrained parameters. This capability is essential for graph foundation models…

机器学习 · 计算机科学 2026-03-17 Wei Zhuo , Siqiang Luo

Post-training has become essential for adapting large language models (LLMs) to complex downstream behaviors, including instruction following, preference alignment, and multi-step reasoning. Reinforcement learning with verifiable rewards…

机器学习 · 计算机科学 2026-05-20 Chengqian Zhang , Wei Zhu , Kyumin Lee

Low-rank adaptation~(LoRA) has recently gained much interest in fine-tuning foundation models. It effectively reduces the number of trainable parameters by incorporating low-rank matrices $A$ and $B$ to represent the weight change, i.e.,…

机器学习 · 计算机科学 2024-05-07 Ziqi Gao , Qichao Wang , Aochuan Chen , Zijing Liu , Bingzhe Wu , Liang Chen , Jia Li

Adaptability has been regarded as a central feature in the foundation models, enabling them to effectively acclimate to unseen downstream tasks. Parameter-efficient fine-tuning methods such as celebrated LoRA facilitate efficient adaptation…

机器学习 · 计算机科学 2026-02-10 Gagik Magakyan , Amirhossein Reisizadeh , Chanwoo Park , Pablo A. Parrilo , Asuman Ozdaglar

Safety architectures for language models increasingly rely on external monitors to detect errors and inject corrective signals at inference time. For such systems to function in interactive settings, models must be able to incorporate…

计算与语言 · 计算机科学 2026-01-15 Felipe Biava Cataneo

Parameter-Efficient Fine-Tuning of Diffusion Transformers (DiTs) for diverse, multi-conditional tasks often suffers from task interference when using monolithic adapters like LoRA. The Mixture of Low-rank Experts (MoLE) architecture offers…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Jinqi Xiao , Qing Yan , Liming Jiang , Zichuan Liu , Hao Kang , Shen Sang , Tiancheng Zhi , Jing Liu , Cheng Yang , Xin Lu , Bo Yuan

Offline reinforcement learning (RL) enables policy learning from pre-collected offline datasets, relaxing the need to interact directly with the environment. However, limited by the quality of offline datasets, it generally fails to learn…

机器学习 · 计算机科学 2025-09-03 Xingshuai Huang , Di Wu , Benoit Boulet